PerformanceAnalyzer.cs :  » GUI » TreeViewAdv » Aga » Controls » C# / CSharp Open Source

using System;
using System.Collections.Generic;
using System.Text;
using System.Diagnostics;

namespace Aga.Controls{
  /// <summary>
  /// Is used to analyze code performance
  /// </summary>
  public static class PerformanceAnalyzer
  {
    public class PerformanceInfo
    {
      private string _name;
      public string Name
      {
        get { return _name; }
      }

      private int _count = 0;
      public int Count
      {
        get { return _count; }
        set { _count = value; }
      }

      private double _totalTime = 0;
      public double TotalTime
      {
        get { return _totalTime; }
        set { _totalTime = value; }
      }

      private Int64 _start;
      public Int64 Start
      {
        get { return _start; }
        set { _start = value; }
      }

      public PerformanceInfo(string name)
      {
        _name = name;
      }
    }

    private static Dictionary<string, PerformanceInfo> _performances = new Dictionary<string, PerformanceInfo>();

    public static IEnumerable<PerformanceInfo> Performances
    {
      get
      {
        return _performances.Values;
      }
    }

    [Conditional("DEBUG")]
    public static void Start(string pieceOfCode)
    {
      PerformanceInfo info = null;
      lock(_performances)
      {
        if (_performances.ContainsKey(pieceOfCode))
          info = _performances[pieceOfCode];
        else
        {
          info = new PerformanceInfo(pieceOfCode);
          _performances.Add(pieceOfCode, info);
        }

        info.Count++;
        info.Start = TimeCounter.GetStartValue();
      }
    }

    [Conditional("DEBUG")]
    public static void Finish(string pieceOfCode)
    {
      lock (_performances)
      {
        if (_performances.ContainsKey(pieceOfCode))
        {
          PerformanceInfo info = _performances[pieceOfCode];
          info.Count++;
          info.TotalTime += TimeCounter.Finish(info.Start);
        }
      }
    }

    public static void Reset()
    {
      _performances.Clear();
    }

    public static string GenerateReport()
    {
      return GenerateReport(0);
    }

    public static string GenerateReport(string mainPieceOfCode)
    {
      if (_performances.ContainsKey(mainPieceOfCode))
        return GenerateReport(_performances[mainPieceOfCode].TotalTime);
      else
        return GenerateReport(0);
    }

    public static string GenerateReport(double totalTime)
    {
      StringBuilder sb = new StringBuilder();
      int len = 0;
      foreach (PerformanceInfo info in Performances)
        len = Math.Max(info.Name.Length, len);

      sb.AppendLine("Name".PadRight(len) + " Count              Total Time, ms    Avg. Time, ms       Percentage, %");
      sb.AppendLine("----------------------------------------------------------------------------------------------");
      foreach (PerformanceInfo info in Performances)
      {
        sb.Append(info.Name.PadRight(len));
        double p = 0;
        double avgt = 0;
        if (totalTime != 0)
          p = info.TotalTime / totalTime;
        if (info.Count > 0)
          avgt = info.TotalTime * 1000 / info.Count;
        string c = info.Count.ToString("0,0").PadRight(20);
        string tt = (info.TotalTime * 1000).ToString("0,0.00").PadRight(20);
        string t = avgt.ToString("0.0000").PadRight(20);
        string sp = (p * 100).ToString("###").PadRight(20);
        sb.AppendFormat(" " + c + tt + t + sp + "\n");
      }
      return sb.ToString();
    }
  }
}